it was unclear if he was read his miranda rights. but in washington, white house spokesman jay carney said he's a naturalized u.s. citizen, so he will not face a military tribunal. >> he will not be treated as an enemy combatant. we will prosecute this terrorist through our civilian system of justice, under us law. u.s. citizen can not be trialed, tried rather in military commissions. and it's important to remember that since 9-11 we have used the federal court system to convict and incarcerate hundreds of terrorists. >> brown: tsarnaev was also likely to face state charges in the shooting death of a police officer at m.i.t. it all followed his dramic capture friday evening, when he was found hiding and wounded in a boat behind a home in the boston suburb of watertown. his older brother tamarlen died hours earlier in a shoot-out with police that triggered the all-day manhunt and shut down the city. yesterday, on cbs, massachusetts governor deval patrick stood by the unprecedented measures. >> i think people understood that we were ma